Wrapping machine



Aug. 7, 1945. J. 5. PECKER ET AL WRAPPING MACHINE Filed June 5, 1943 5Sheets-Sheet 1 INVENTORS. J. s. PECKER.

H-A. s MPSON. A.S.'K\RSHNER ATTORNEYS.

Aug. 7, 1945.

J. s. PECKER ET AL 2,381,078

WRAPPING MACHINE 5 Sheets-Sheet 2 Filed June 3, 1 943 INVENTORS J.s.PEGKER'.

BY Asxmsuuen.

ATTORNEYS.

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Aug. 7, 1945. J: s. PECKER ET AL- WRAPPING MACHINE Filed June 3, 1943 5Sheets-Sheet 3 ywanamw ATTORNEYS.

Aug- 7, 945- .1. s. PECKER ET AL WRAPPING. MACHINE Filed June 5,- 1945 5Sheets-Sheet 4 INVENTORS- J-SPECKER.

wmsnw sow. BY A.S.K\RSHNER.

yw Ma 9M ATTORNEYS Aug. 7, 1945. J. s. EckER ETAL WRAPPING MACHINEFiled-June 5; 1943 5 Sheets-Sheet 5 INVENTORS J. S PECKER. H-A- SMPSQN.BY A-$.K\RSHNER.

A TTORNEYS.

' Patented Aug. 7,1945

WRAPPING M CHINE Joseph S. Pecker and Henry A. Simpson, ,Philadelphia,and Abraham S. Kirshner, Llanerch, Pa., assignors to Celanese()orporation o! America, a corporation of Delaware Application June 3,1943, Serial No. 489,436

8: Claims.

This invention relates to wrapping machines, and relates moreparticularly to a machine for applying an outside protective wrapper toyarn packages.

' In preparingyam packages, such as cones of yarn or the like, forstorage or shipment, they are usually wrapped in a sheet of paper,treated or untreated, before being placed in suitable containerstherefor. .Heretofore, the wrapping of the yarn packages was done byhand, a method which obviously was time-consuming and costly.

It is an important object of this'invention to provide a machine forautomatically and expeditiously applying wrappers to yarn packages.

Another object of this invention is the provision of means forautomatically removing the yarn packages from the conveyor after theyare wrapped, and-for depositing the same in suitable containers. p A

Other objects of this invention, together with certain details ofconstruction and combinations of parts, will appear from the followingdetailed description.

According to the present invention, an endless conveyor carries verticalspindles on which are adapted to be placed manually the cones or otheryarn packages to be wrapped. The conveyor is driven intermittently andis so timed that the spindles-come to a stop directly under the centerof a wrapping head where a paper wrapper is to be appliedto the yarnpackage. One or more wrapping heads may be provided, depending upon thedesired capacity of the machine. When the conveyor is brought to a stop,with a spindle containing a. yarnpackage under a wrapping head, thespindle and package are caused to be raised by a suitable cam and leverarrange-. ment, whereby the yarn package is lifted into the wrappinghead where a sheet of paper is wrapped around the yarn package and theends of the wrapper are twisted together.

The wrapping head consists of a fixed circular base mounting a' seriesof rollers which are tapered when a cone of yarn isto'be'wrapped, thetaper of therollers being the same as that of the cone. The rollersrotate continuously at a predetermined speed by means of gears, and therollers are so mounted in suitable housings that their distance from thecenter of the wrapping head may be varied. As the y'arn package islifted intothe wrapping head, the rollers-tare spread apart to permitthe entry of the yarn package. As the yarn package is raised to adesired position within the wrapping head, the

' rollers are released so that spring means may .pull the rollersinwardly against the yarn package thereby rotating the same.

paper, out to size, is held in a suitable magazine from which it isdelivered to the wrapping head through a gap in the circular basethereof at a tangent to the package being wound, the sheet being caughtbetween the yarn package and the rollers as they revolve and is rolledor wrapped around the yarn package. As the wrapped package continues torotate, twister fingers or plates positioned above and below therotating package'are moved inwardly so that they engage and therebytwist" the ends of the paper wrapper. The twister fingers or plates arethen removed and at the same time the rollers of the wrapping head swingout to permit the withdrawal from the wrapping head of the wrapped yarnpackage. The conveyor then moves forward a suitable distance to permitan unwrapped package, or more than one unwrapped package, where aplurality of wrapping heads are employed, to move to a position underthe wrapping head or heads. At a predetermined point on the conveyor,suitable means are provided for transferring automatically the wrappedyarn packages from the conveyor to a suitable container.

In the drawings wherein one .emboidment of this invention is shown,

Figure l is a side elevational view of the yarn package wrapping machineof this invention,

Figure 2 is also a side elevational view of the wrapping machine, on aslightly enlarged scale mechanism, and

and partly in section,

Figure 3 is a top plan view of the wrapping head of said machine,

,Figure 4 is a vertical sectional view of the wrapping machine taken online 44 in Figure 3,

Figure 5 is a top plan view of the transferring mechanism, partly brokenaway to show the operating gears,

Figure 6 is a ietail view, partly in section, of the package grippingmeans of the transfer Figure 'l is 'a detail view of the trippingmechanism for the package gripping means.

,,Like reference numerals indicate like parts throughout the severalviews of the drawings.

Referring now to the drawings for a detailed description of thisinvention, and specifically to Figures 1 and 2 the reference numeral iiindicates generally an endless conveyor comprising a plurality ofcarriages or trucks I2 having wheels or rollers I3 thereon adapted toride on an endless track l4, Each of the carriages I2 is The wrappingprovided with a relatively fixed cylindrical bearing i 5 in which isslidably carried a sleeve IS. The sleeve is mounted on a spindle I1, theupper end l8 of which is adapted to receive the yarn package I9 to bewrapped, the core of theyarn package sitting firmly on=thefrusto-conical collar 20. The wrapping machine shown in the drawings isdesigned to wrap a. cone of yarn and this invention will be described inconnection therewith. The sleeve I6 is provided with an integralcollar2l carrying a set screw 22 for maintaining said sleeve l6inposition on spindle l1. Each spindle is provided with an integralextension 23, the lower extremity of which has a bifurcation 24 in whicha, roller 25 is journalled. The conveyor is adapted to be moved by anarticulated chain 26 which is intermittently driven by a suitable drivemeans (not shown).

' A cam and lever arrangement generally indicated by reference numeral21 is provided to lift predetermined spindles carrying yarn packages tobe wrapped into wrapping heads, generally indicated by reference numeral28, spaced above and at suitable intervals along the endless conveyor.In the drawings two such wrapping heads are shown. It will beunderstood, however, that any number may be positioned along the lengthof the conveyor, depending upon the desired capacity of the machine.

The conveyor movement is so timed that it is brought to a stop with thespindles directly under the center of the wrapping head. At this pointspherical bearing surfaces 29 (carriedby each of the spindles) on thespindles directly under the wrapping heads enter between bearingsurfaces 3! and 32 on lever 33', and roller 25 contacts bearing surfaces34 on lever 95. Lever 38 is operatively connected to bell-crank lever-36, to one end 31 of which is pivotally attached a lever 38 and on theother end 39 of which is carried a cam follower 4| cooperating with acam 42' mounted on the same shaft, hereinafter referred to, as cam 42. Alever 43 is pivotally attached to lever 38 and a lever 44, which issimilar to lever 33 and which is provided with bearing surfaces 45 and46 similar in structure and function to bearing surfaces 3| and 82 onsaid lever 33, is pivotally attached to lever 43. The lever 35 isoperatively connected to a bell-crank lever 41, one end 48 of whichcarries a cam follower 49 cooperating with the cam 42 andthe other end5| of which is pivotally connected to a lever 52 on which ispivoted alever 53 pivotally carrying a, lever 54 having a bearing surface 55similar in structure and function to bearing surface 34.

Cams 42 and 42 are keyed to shaft 56 driven by any suitable means (notshown). As the shaft 56 and cams 42 and 42' rotate, the cam surfacesacts on rollers and 49 lifting the,predeter' lessconveyor forward adistance equal to two.

spaces to bring unwrapped yarn cones in position under the wrappingheads.

The wrapping heads 29 are carried by brackets 58' attached to portions51 of the machine framework by means of bolts 58. The brackets 56 areprovided at their free ends with bear- 4 ing members .59 ineach of whichis journalled a fixed to tubular shafts l4 journalled on bearing points15 in the extremities of a U-shaped holder 18. Shaft 14 carries thereontapered rollers 11 and ,18. ,The rotation of gears 12 rotate the taperedrollers'continuously at a predetermined speed. Holders 16 together with.the tapered rollers carried thereby are mounted on brackets 19 formovement toward and away from the center of the wrapping head. 4 Themovement of said tapered rollers is governed by the vertical movement ofthe spindle carrying the yarn package, the movements being so timed thatthe rollers are spread apart to allow clearance for the .cone cominginto wrapping position. When the cone has reached a predeterminedposition in.

the wrapping head, the rollers are released, a spring 80 acting on arm8| of bracket 19 pulling the rollers inwardly against the cone causingthe rotation of the same.

The paper wrappers 82 are supplied from a magazine 83 by means of areciprocating member 84, the paper wrapper being supplied at a tangentto the cone through a, gap in the circular base. The paper. wrapper iscaught between the yarn package and the tapered rollers as they revolveand is rolled orwrapped about the cone. At a suitable times. pair. oftwister fingers or plates 85 carried on arms 86 integral with collars 81fixed to shaft 88 are swung in position above and below the wrapped coneengaging and twisting the ends of the wrapper. These twister fingers orplates remain in their inner or operative position only long enough tocarry out their function and are immediately swung back Ito theiroutermost or inoperative position. At the same time the tapered rollersare swung outwardly to permit the withdrawal of the wrapped yam packageon the spindles l1.

At a convenient point along the conveyor, there is positioned means,generally indicated by reference numeral 89, for transferring thewrapped yarn packages from the conveyor and for placing them intosuitable containers 9| on another conveyor generally indicated byreference numeral 92. The transfer mechanism comprises a yok 93 mountedon a shaft 94 which is adapted to rotate in predetermined time relationwith the conveyor, I I of the yarn wrapping machine. The yoke 93 isprovided with two transfer heads-95 and 98. In operation, the shaft-94'is elevated to a point where the fingers 91 of the transfer heads areclear of the top of the containers 9| and wrapped yarn package l9. -Asshown in Figures 1 and 5, when one of the transfer heads is over theconveyor in position to remove therefrom two wrapped yam packages, it isparallel thereto and at right angles to the yoke 93, while the othertransfer head is at 45 to the yoke. When the transfer mechanism is inposition shown in Figure 1, the gripping fingers 91 in the transfer headover the conveyor H are in extended position,

while the gripping fingers on the other transfer head 96 are incontracted or gripping position. Means are provided for operating thegripping fingers in a predetermined manner. This means shaft 6| carryingsprocket wheels adapted to'f comprises a rocker arm 98 pivotally mountedin the yoke 93 and having two bifurcated ends in which are journalledthe ends of levers 99. The levers 99 are pivoted at IN on uprightbrackets I02. The opposite ends of levers 99 are provided with ballbearing members I03 which are journalled in sockets I04 formed in yokeI05 connecting the two gripping members I06 and I01 of each transferhead.

As the yoke 93 is lowered to pick up the two yarn packages, the rockerarm is actuated by a snap action motivator, generally indicated byreference numeral I08, coming into contact with 'a vertically adjustabletrip rod I09.

The tripping of the rocker arm causes thegrlppin fingers of one set ofgripping members to move outwardly and the gripping fingers of the otherset of gr pping members to move inwardly, the gripping fingers beingmoved through a rod I09 attached to yoke I05, which rod carries abearing member indicated by reference numeral III formed by discs H2 andH3. The bearing member operates bell-crank brackets II4 to which thegripping fingers 91 are attached,

After the transferhead 95 has gripped the two yarn packages on conveyorII and transfer head 96 has released the two wrappedyarn packages incontainer 9|, the transfer heads are raised by shaft 94 and are rotatedthrough an angle of 180 by means of a planetary gear system, gener- Ially indicated by reference numeral I I5, and connecting rod IIB carriedin yoke 93. When the transfer head reaches the position over container9|, it assumes a position which is at right angles to the position nowshown in Figure 5 of transfer head 96 whereby the wrapped cones may beplaced in unoccupied spaces in the container 9 I.

It is to be understood that the foregoing detailed description is givenmerely by way of illustration and that many variations may be madetherein without departing from the spirit of my invention.

Having described our invention, what we desire to secure by LettersPatent is:

l. A device for applying wrappers to yarn packages, comprising awrapping head including spaced rollers for applying the wrapper to theyarn packageand means for rotating said rollers at a constant speed,means for intermittently feeding said package to a position in verticalalignment with said wrapping head and means for effecting relativemovement between said wrapping head and said package.

2. A device for applying wrappers to irustoconical yarn packages,comprising a wrapping head including spaced, tapered rollers forapplying the wrapper to the yarn package and means for rotating saidtapered rollers at a constant speed, means for intermittently feedinsaid package to a position in vertical alignment with said wrapping headand means for effecting relative movement between said wrapping head andsaid package.

3. A device for applying wrappers to yarn packages comprising a.wrapping head including spaced rollers for applying the wrapper to theyarn package and means for rotating said rollers at a constant speed,means for intermittently feeding said yarn package to a positiondirectly below said wrapping head and means for lifting said packageinto said wrapping head for contact with said rollers.

4. A device for applyin wrappers to yarn packages comprising a wrappinghead including spaced, radially movable rollers for applying the wrapperto the yarn package and means for rotating said rollers at a constantspeed,'means for intermittently feeding said yarn packages to a positiondirectly below said wrapping head and means for lifting said packageinto said wrapping head for contact with said rollers.

5-. A device for applying wrappers to yarn pa ckages comprising awrapping head including spaced rollers for applying the Wrapper to theyarn package, means for rotatin said rollers at a 1 constant speed andmeans for moving said rollers in a radial direction, means forintermittently feeding said yarn package to a position directly belowsaid Wrapping head and means for lifting said package into said wrappinghead for contact with said rollers.

6. A device for applying wrappers to yarn packages comprising a wrappinghead including spaced rollers for applying the wrapper to the yarnpackage, means for rotating said rollers at a constant speed and meansfor moving said rollers in a radial direction, means for intermittentlyfeeding said yarn package to a position directly below said wrappinghead and cam and lever means for lifting said package into said wrappinghead for contact with said rollers.

'7. A device for applying wrappers to yarn packages comprising aWrapping head including spaced rollers for applying the wrapper to theyarn package, means for rotating said rollers at a constant speed andmeans for moving said rollers in a radial direction, means forintermittently feeding a yarn package to a position directly below saidwrapping head, cam and lever means for lifting said package into saidwrapping head for contact with said rollers and means for feeding awrapper to said rollers.

8. A device for applying wrappers to yarn packages comprising a wrappinghead including spaced rollers for applying the wrapper to the yarnpackage, means for rotating said rollers at a constant speed and meansfor moving said rollers in a radial direction, means for intermittentlyfeeding a yarn package to a position directly below said wrapping head,cam and lever means for lifting said package into said wrapping head forcontact with said rollers and means for feeding a wrapper to saidrollers at a tangent thereto at a point between said rollers.

JOSEPH S. PECKER. HENRY A. SIMPSON. ABRAHAM S. KIRSHNER;

